Boost&Cubes

Hi:

My wifes '01 ML430 no longer flashes 3 times after locking the car with the Remote Key. All 4 doors & the rear hatch all lock, but there is no longer a 3 flash confirmation from the lights.

Is there something I can do myself to "Reset" the car computer and get this working again without having to take it to the dealer ?

Thanks in Advance.